The apocalypse is coming, and the world has become a paradise for zombies. Former programmer Chen Tianyu accidentally awakened the special ability to "see" and modify the codes of everything in the world during a life-and-death crisis. Starting from cracking a drone, he used this magical skill to turn abandoned technological products into his own weapons, treating ferocious zombies as programs that could be "debugged". In this collapsed wasteland, Chen Tianyu is no longer a survivor at the mercy of others, but the only "god-level programmer" who will use code to rewrite the doomsday and establish his own order.